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Finding the Fourth Proportional to 5,381.98, 8,074.14 and 2,260.21

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Solution

The fourth proportional to 5,381.98, 8,074.14 and 2,260.21 is: 3,390.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,381.98 : 8,074.14 = 2,260.21 : x
  2. Step 2: Convert to fraction form
    5,381.98/8,074.14 = 2,260.21/x
  3. Step 3: Cross multiply
    5,381.98x = 8,074.14 × 2,260.21
  4. Step 4: Simplify right side
    5,381.98x = 18,249,211.60
  5. Step 5: Solve for x
    x = 18,249,211.60/5,381.98
  6. Step 6: Final answer
    x = 3,390.80

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.